BR102015008476B1 - OPERATION METHOD FOR AN AIR CONDITIONING SYSTEM FOR A MOTOR VEHICLE, KNOWING A BUS, AND FOR AIR CONDITIONING SYSTEMS FOR SEVERAL MOTOR VEHICLES, AIR CONDITIONING SYSTEM FOR A MOTOR VEHICLE, PREFERABLY AN URBAN BUS, AND URBAN BUS - Google Patents

Abstract

SYSTEM AND METHOD OF OPERATION FOR AN AIR CONDITIONING SYSTEM OF AT LEAST ONE AUTOMOTIVE VEHICLE, PREFERABLY AN URBAN BUS AND URBAN BUS The invention concerns a method of operation for an air conditioning system of at least one motor vehicle, preferably for the previous calculation of at least one temperature control plan for an established route or at least a section of a stretch thereof, An operation method is characterized especially by means of the following steps: preferably the establishment of a desired ideal temperature in the internal space of the motor vehicle, establishment of a route, determination of a predicted parameter, wherein the predicted parameter comprises a predicted external climate on the route or at least in a section of a stretch thereof and/or a predicted heat transfer in the internal space of the motor vehicle in the route or at least a section of a stretch thereof and determination of at least one plan the temperature control for the route or at least a section of it, depending on the predicted parameters determined. An alternative or additional method of operation is characterized in particular by means of the following steps: determination of temperature control plans for the air conditioning systems of motor vehicles by means of a command processor and remote control of the vehicle's air conditioning systems vehicles depending on the temperature control plans, preferably by means of telematics.

Description

[0001] The invention concerns a method of operation for an air conditioning system of at least one motor vehicle, preferably for prior calculation of at least one temperature control plan for an established route or at least a section of a stretch thereof. . The motor vehicle is preferably a bus, convenient for local public transport, which uses repeatedly, usually at least one predetermined and therefore already known path (eg circulation).

[0002] The control (regulation) of a bus air conditioning system occurs today, usually due to a predefined ideal value (eg 22 °C). Control generally takes place via an ideal value input of the conductor, an outside temperature measurement, as well as an inside temperature measurement. The control of the air conditioning system occurs through a capacity of a compressor, which can also be presented through a temperature control on the heater following the air stream.

[0003] It is disadvantageous in current bus air conditioning systems their relatively high energy consumption.

[0004] A task of the invention is to create a method of operation and an air conditioning system belonging to a motor vehicle, preferably a bus, with low energy consumption.

[0005] This task can be solved with the characteristics of independent claims and with dependent claims. Advantageous embodiments of the invention can be obtained from the dependent claims and the subsequent description.

[0006] The invention creates a method of operation for an air conditioning system of at least one motor vehicle, preferably for prior calculation of at least one temperature control plan for an established route or at least a section of a stretch thereof. The motor vehicle is preferably an urban bus, which repeatedly uses at least one already known route (eg circulation).

[0007] The method of operation is characterized especially, therefore, in which at least one route is established, at least one predicted parameter (to be expected) for the route or a section of the stretch thereof is determined and a temperature control plan for the entire path or at least a section of it is determined appropriately depending on the predicted predicted parameter. The predicted parameter comprises at least one predicted (to be expected) outdoor climate and/or at least one predicted (to be expected) heat transfer (e.g. cold transfer or heat transfer) in the interior of the motor vehicle.

[0008] The predicted outdoor climate preferably corresponds to a course of the outdoor weather along the route or at least a section of the stretch thereof.

[0009] The predicted heat transmission preferably corresponds to a heat transmission course along the path or at least a section of a stretch thereof.

[0010] It is possible that the temperature control plan is determined through an external command processor of the motor vehicle and/or the air conditioning system is properly controlled, remotely depending on the temperature control plan, preferably through of telematics.

[0011] An important partial aspect of the invention is that through at least one parameter predicted and appropriately the factors influencing the air conditioning system of the already known route (for example, outside temperature, street pavement temperature, topology of the section, number of passengers, stopping times and waiting times and/or shadow indices) are already known or can be at least predictive and ponderable. Therefore, the energy consumption of air conditioning systems can be pre-calculated at least approximate and the temperature control plan can be modified for reduced energy consumption or optimized energy consumption. For example, spikes in power consumption that could lead to high power consumption but relatively little use of temperature control. Also, increased consumption, for example due to an unmeasured ideal temperature, which, for example, could result from driver directives, can be avoided.

[0012] For the purpose of the invention, an ideal temperature course of the internal space with reduced energy consumption can subsequently be determined.

[0013] The ideal temperature range of the interior space with reduced energy consumption, for example, for the reduction of energy consumption, may diverge from a desired ideal temperature of the interior space of the motor vehicle and in fact, especially in order to temperature comfort curve limiting the divergence.

[0014] The above method of operation, based on the established route and/or the predicted parameter, is therefore particularly suitable for controlling the air conditioning systems of several motor vehicles centrally and, therefore, outside the motor vehicle.

[0015] The invention subsequently also creates a method of operation, by means of which air conditioning systems can be controlled by various motor vehicles. The method of operation preferably serves for the prior calculation of temperature control plans for air conditioning systems of various motor vehicles and indeed, especially for established routes or at least sections of stretch thereof.

[0016] The method of operation is characterized especially therefore, that the temperature control plans for air conditioning systems of motor vehicles are determined by means of an external command processor of the motor vehicle centrally and the air conditioning systems of motor vehicles are centrally controlled remotely depending on the temperature control plans, preferably by means of telematics.

[0017] It is possible that motor vehicle routes are determined and/or temperature control plans are determined depending on at least one predicted parameter for the routes or at least the section of the section thereof. The predicted parameter comprises at least one predicted outdoor climate (e.g. course of outdoor weather along the route or at least one section of a stretch thereof) and/or at least one predicted heat transfer (e.g. cold transmission and / or heat transfer) in the internal space of the motor vehicle (for example, the course of heat transfer along the route or at least a section of the stretch thereof).

[0018] The described operation methods make it possible especially to operate air conditioning systems economically, because factors influencing the air conditioning to be expected (for example, outside temperature, street pavement temperature, topology of the section, number of passengers, times stop times or wait times and/or shadow indices) can be considered together in advance.

[0019] The described operating methods are in fact suitable, in principle, for all types of motor vehicles, especially, however, for urban buses, which repeatedly use already known routes (for example, circulation).

[0020] It is possible that the amount of heat transmission (e.g. cold and/or heat) in the interior space of the motor vehicle and/or a temperature control plan is determined along the route or at least of a section of section thereof, which are indispensable for achieving and especially maintaining the desired temperature inside the motor vehicle properly throughout the entire journey or at least in a section of the section thereof, when considering the properly predicted parameter of the journey. Therefore, however, it may happen that the demand for indispensable energy is disproportionately high and with this potential energy savings are available.

[0021] It is possible that an ideal temperature course of the internal space of the motor vehicle is practically determined, to be carried out (for example, of curved shape in parts, constant or linear) along the suitably entire path or at least in a section of this stretch when considering the predicted parameter and, for example, a temperature comfort curve and/or the established path.

[0022] The amount of heat transfer (e.g. cold and/or heat) can be appropriately determined in the interior space of the motor vehicle and/or a plan in the temperature control plane, which is indispensable for the achievement and proper maintenance of the ideal temperature course in the internal space of the motor vehicle, preferably along the route or at least a section of the stretch thereof when considering the predicted parameter. The corresponding one can therefore be temperature controlled.

[0023] The course of the ideal temperature in the internal space of the motor vehicle to be carried out may diverge at least in parts from a current desired ideal temperature. The temperature comfort curve can define the maximum divergence between the current desired ideal temperature and the ideal temperature to be actually performed.

[0024] The predicted parameter can be compared to an actual size actually available on the path and the temperature control can then be adapted depending on the difference. It is therefore, for example, possible for the predicted outside temperature to deviate from the actual outside temperature, for example by means of a considerable temperature drop, whereby by means of temperature control depending on the difference, this can be reacted.

[0025] It is possible that the directives of the driver of the motor vehicle or of the motor vehicles are suppressed depending on the energy consumption and/or are overridden by the directives of the external command processor of the motor vehicle depending on the energy consumption. This can, for example, be the case when the driver wants to cool down heavily before a climb or even in complete driver guidelines, lead to disproportionately high energy consumption.

[0026] Remote control of the air conditioning system through the motor vehicle's external command processor may then be especially responsible for the air conditioning system can no longer be unconditionally controlled by the driver.

[0027] The predicted outdoor climate especially describes at least one of the following: Outside air temperature, street pavement heat temperature or convection, air temperature in the space, in which the motor vehicle or motor vehicles are stopped or parked ( e.g. pavilion).

[0028] The predicted outdoor weather, for example, can be predicted by a weather service in the form of a current outdoor weather or a predicted outdoor weather. This can, however, also be deposited as experience value or current factor already known in a storage device (eg temperatures in tunnels and pavilions).

[0029] In addition, the motor vehicle itself or another motor vehicle can detect the outdoor weather, which subsequently can be used as a forecast outdoor weather for a (new) departure of the route or at least a section of the stretch thereof.

[0030] The predicted heat transfer in the internal space of the motor vehicle may, for example, comprise: Heat dissipation from the walls of the motor vehicle in the internal space of the motor vehicle, heat transfer in the internal space of the motor vehicle depending on the external temperature and the specific configuration of the motor vehicle (eg mass, heat transfer coefficient, etc.) and/or number of passengers.

[0031] The predicted heat transfer can be researched on the motor vehicle itself or on various motor vehicles representing standard motor vehicle, for example on journeys, e.g. starting at different times and/or at different outside temperatures, and the heat transfer is determined, for example, by means of sensors. The predicted heat transfer can, however, for example, be determined by means of computer generated simulation models.

[0032] Therefore, since heat transmission (eg heat and/or cold) can be predicted, it can be ignored or used.

[0033] The predicted outdoor climate preferably comprises a predicted varying outdoor air temperature course generally along the suitably entire path or at least a section of a stretch thereof.

[0034] The predicted parameter may additionally comprise shade indices (shade indices by means of, for example, buildings, trees, tunnels, etc.) and/or stop times or waiting times (for example, traffic lights, construction sites, etc.). works, peak times, stopping points, etc.) on the route or at least in a section of the stretch thereof.

[0035] Between the external command processor of the motor vehicle and the motor vehicle, a bidirectional data exchange can preferably occur. The motor vehicle especially transmits a current temperature of the interior space of the motor vehicle, a current outside climate and/or other factors influencing the air conditioning system (e.g. dust, construction site, etc.) on the route or at least on a snippet section of this. The command processor appropriately processes this information for updating the temperature control plan for the motor vehicle itself or for setting and/or updating the temperature control plan for another motor vehicle.

[0036] It is possible that the temperature control plan or the temperature control plans consider the topology in the path or at least in a section of the path. Therefore, temperature control can occur especially in the impulse phase, whereas before the impulse phase, temperature control is reduced or completely discontinued.

[0037] It is to be mentioned that the characteristic “forecast outdoor weather” especially comprises an estimated outdoor weather to be expected on the path. This can, for example, be based on a current outdoor climate detected earlier on the route (eg determined by other motor vehicles, measurement points and/or the motor vehicle itself). It can, however, also be a current outdoor climate, for example provided with a meteorological service (microclimate weather). Likewise, this can be based on a weather forecast (microclimate weather). In addition, this may comprise an outdoor climate based on experience values and/or known factors. This preferably comprises the temperature of the external air, humidity, rain, emergence of clouds and/or incidence of sun.

[0038] For the purposes of the invention, the predicted outdoor climate or generally the predicted parameter enters as a parameter already known and/or estimated to be expected in the temperature control of the air conditioning system or air conditioning systems.

[0039] Again it is to be mentioned that the motor vehicle is referentially an urban bus, especially for local public transport that repeatedly uses at least one already known route (eg circulation).

[0040] Furthermore, it is to be mentioned that for the purpose of the invention, the actual temperature in the interior space of the motor vehicle can be properly determined of course and can enter into the control of the air conditioning system or the temperature control plane.

[0041] It is further to be mentioned that the invention is described in parts under the reference name of a motor vehicle air conditioning system. The invention is also particularly suitable for various air conditioning systems of motor vehicles. The disclosure/description referring to a motor vehicle air conditioning system subsequently refers also corresponding to various motor vehicle air conditioning systems.

[0042] Furthermore, it is to be mentioned that the characteristic “control”, is to be interpreted broadly and may preferably also comprise “regular”.

[0043] Furthermore, it is to be mentioned that the methods of operation preferably comprise temperature control according to the temperature control plan appropriately optimized for consumption and/or the ideal temperature in the internal space of the motor vehicle appropriately optimized for consumption .

[0044] It is further to be mentioned that a temperature sensor can be arranged behind a cladding element (e.g. behind the MAN logo, especially the MAN lion) for the external temperature in front of the motor vehicle and/ or a temperature sensor may be suitably disposed within the ceiling or adjacent to the air conditioning system for indoor temperature.

[0045] The invention is not limited to the method of operation, but also comprises an air conditioning system for a motor vehicle, preferably a city bus that is driven to perform the method of operation, therefore disclosed herein.

[0046] The invention is furthermore particularly suitable for urban trains (eg subway or light rail) which are also used repeatedly, usually on at least one appropriately predetermined and therefore already known route.

[0047] The preferred embodiments and features of the invention described above may be combined with each other. Other advantageous embodiments of the invention are disclosed in the dependent claims or result in subsequent description of preferred embodiments of the invention, in connection with the accompanying figures. Figure 1 shows a graph for facilitating understanding of the invention, Figures 2-3 show a flow diagram of a method of operation, according to an embodiment of the invention, and Figures 4-6 show presentations of principle, according to embodiments. of the invention.

[0048] Figure 1 shows a graph to facilitate the understanding of the invention. Figure 1 shows an external temperature course during a known journey departing by means of a bus, a current temperature course in the interior space and a predicted heat transmission course in the interior space of the bus (for example, dependent on the external temperature , internal temperature, mass of the bus, insulation of the bus walls and windows, etc.) of an air conditioning system.

[0049] Figures 2 and 3 show a flow diagram for a method of operating an air conditioning system, according to an embodiment of the invention. The method of operation reverts to acknowledgments from figure 1 in order to operate the air conditioning system with energy savings.

[0050] In a step S1 the line (path) departing from the bus is established according to the temporal flow (for example, according to the route plan or from a navigation device). Therefore, since the route is already known, its factors influencing the air conditioning system are also predictively already known (for example, usual stopping times or waiting times, number of passengers, shadow rates, ascents, descents, etc. ).

[0051] In a step S2, the current temperature is determined in the internal space to have the temperature controlled of the bus, for example, by means of temperature sensors, also the current temperature of the pavement can be determined in the route, which, by For example, in summer, on heated tar, it can have an absolute influence on the temperature of the internal space.

[0052] In a step S3, the current outside air temperature is determined on the way, for example, by means of a weather service for specific city regions (microclimate) or by means of telematic data from other systems (for example, other motor vehicles, measuring points, etc.).

[0053] In a step S4, the amount of heat or the amount of cold required or in general terms, a temperature control plan for achieving and maintaining the desired ideal temperature of the interior space is calculated for the appropriately entire path. The predicted outdoor climate and also the predicted air transmission (eg cold and/or heat) are included in the calculation. Generally, for reasons of generally disproportionate energy consumption, the desired ideal indoor space temperature is almost quickly to be repaired regardless of the influencing factors of the air conditioning system.

[0054] In a step S5, an ideal temperature stroke is calculated to be carried out in fact, of low consumption, especially optimized for consumption (for example, at least constant in parts, in curved shape, etc.), which can deviate from the current desired ideal temperature at least in parts, in order to achieve a comfort curve. The predicted outdoor climate is included in the calculation and so is the predicted heat transfer (eg cold and/or heat).

[0055] In a step S6, the amount of heat or amount of cold or in general terms, a temperature control plan is calculated to reach and maintain the course of the ideal temperature of low consumption and consequently, a plan of control is created. temperature control, which the air conditioning system performs on the route or in at least a section of the stretch thereof.

[0056] Figure 4 shows a schematic presentation of an embodiment according to an embodiment of the invention. Figure 4 shows a concept, in which the temperature control plan is created for an air conditioning system for a motor vehicle by means of an external command processor of the motor vehicle and the air conditioning system of the motor vehicle is controlled remotely. depending on the temperature control plan, preferably by means of telematics.

[0057] Figure 4 illustrates, in addition, other steps understood through the method of operation.

[0058] In a first step, an ideal temperature desired for the route is established (line flow) and an indispensable temperature control plan is therefore determined (for example, heat transmission or cold transmission in the internal space of the vehicle self-propelled).

[0059] In a second step, an optimized temperature control plan is created for consumption depending on a predicted outdoor climate, a predicted heat transmission in the interior of the commercial vehicle and a temperature comfort curve, to a path established by means of the external command processor, which the air conditioning system of the motor vehicle executes on the path.

[0060] Figure 4 is to be dispensed with, moreover, since there is an exchange of data between the motor vehicle and the external command processor through a telematics solution (telematics communication). Preferably, a bidirectional data exchange takes place between the motor vehicle and the command processor. The current outdoor climate (eg outside temperature, etc.) and the current indoor space temperature, for example, are transmitted from the motor vehicle to the command processor. The command processor processes the transmitted data in order to update the temperature control plan as required. On the other hand, it can exploit the outdoor weather data transmitted as “predicted parameters” for the motor vehicle itself for the next departure of the route and/or explore for other motor vehicles.

[0061] Figures 5 and 6 show other schematic graphs for illustrating embodiments of the invention. Paths are to be seen, in which motor vehicles are used repeatedly, motor vehicles occasionally transmit detected outdoor weather information to a central command processor, which can enter as predicted outdoor weather in climate control plans of air conditioning systems. following (future).

[0062] The modality according to figures 1 and 3, the modality according to figure 4 and the modality according to figures 5 to 6 can be combined with each other, for the purpose of the invention.

[0063] The invention is not limited to the preferred embodiments described above; Instead, a plurality of variants and modifications are possible, which likewise make use of the thoughts of the invention and therefore encompass protection. Furthermore, the invention also claims protection for the object and features of the dependent claims, dependent on the features and claims.

Claims (15)

1. Method of operation for an air conditioning system of at least one motor vehicle, namely a bus, for the prior calculation of at least one temperature control plan for an established route or at least a section of a stretch thereof , comprising: - establishing a desired ideal temperature in the interior of the motor vehicle, - establishing a route, - determining at least one predicted parameter, wherein the predicted parameter comprises a predicted outdoor climate on the route or at least in a section of a section thereof and/or a predicted heat transfer in the internal space of the motor vehicle on the route or at least in a section of a section thereof, - the determination of at least one temperature control plan for the route or at least one section of the stretch thereof, depending on the determined predicted parameter, characterized by the fact that it comprises the steps of: - determination of the co-plan temperature control by means of an external command processor of the motor vehicle, and - remote control of the air conditioning systems depending on the temperature control plans, by means of telematics. 2. Method of operation for air conditioning systems of various motor vehicles, namely buses, for the prior calculation of temperature control plans for established routes or at least sections of stretches thereof, characterized in that it comprises: - determination of temperature control plans for the air conditioning systems of motor vehicles by means of an external command processor of the motor vehicle, where the temperature control plans are determined depending on at least one predicted parameter, where the parameter forecast comprises a forecasted outdoor climate on the routes or at least in sections of sections thereof and/or a forecasted heat transmission in the internal space of the motor vehicle of the motor vehicles on the routes or at least in sections of sections thereof, and - remote control of the air conditioning systems of motor vehicles depending on the weather control plans perature, by means of telematics. 3. Method of operation, according to claim 1 or 2, characterized in that it comprises: determining the amount of heat transmission in the internal space of the motor vehicle or a temperature control plan to reach a temperature desired ideal in the internal space of the motor vehicle, preferably along the route or at least a section of the stretch thereof, when considering the predicted parameter. 4. Method of operation, according to any one of claims 1 to 3, characterized in that it comprises: determining an ideal temperature course in the internal space of the motor vehicle along the route or at least a section of the stretch of the same and preferably control of the corresponding temperature when considering the predicted parameter and a temperature comfort curve. 5. Method of operation, according to any one of claims 1 to 4, characterized in that it comprises: determining the amount of heat transmission in the internal space of the motor vehicle or a temperature control plan to achieve the course of the ideal temperature in the internal space of the motor vehicle, preferably along the route or at least of a section of the stretch thereof and preferably the control of the corresponding temperature when considering the predicted parameter. 6. Method of operation, according to any one of claims 1 to 5, characterized in that the predicted parameter is compared with an actual variable, which is actually present and the temperature control is adapted depending on the difference. 7. Method of operation, according to any one of claims 1 to 6, characterized in that the directives of the driver of the motor vehicle or motor vehicles are suppressed depending on energy consumption and/or are voided by the directives of the processor of external control of the motor vehicle, depending on energy consumption, conveniently for energy saving reasons. 8. Method of operation, according to any one of claims 1 to 7, characterized in that: - the predicted outdoor climate comprises a predicted course of external air temperature along the path or at least a section of the stretch of the same, and/or - the predicted heat transmission comprises a predicted heat transmission course along the path or at least a section of a stretch thereof. 9. Method of operation, according to any one of claims 1 to 8, characterized in that the predicted outdoor climate describes at least one of the following: - Outside air temperature, - Floor temperature or heat convection, - Temperature environment in the environment in which the motor vehicle is stopped or parked, and - Outside air humidity. 10. Method of operation, according to any one of claims 1 to 9, characterized in that the predicted parameter additionally comprises shadow indices, stopping times or waiting times and/or number of passengers on the route or at least in a section of the same excerpt. 11. Method of operation, according to any one of claims 1 to 10, characterized in that the predicted outdoor climate: - is accessed by a meteorological service, - is determined in advance by the motor vehicle itself on the route, - is determined by another motor vehicle on the way, and/or - is deposited in a storage device as experience value or already known outdoor climate dimension. 12. Method of operation, according to any one of claims 1 to 11, characterized in that a bidirectional data exchange takes place between the external command processor of the motor vehicle and the motor vehicle. 13. Method of operation, according to any one of claims 1 to 12, characterized in that the temperature control takes place in impulse phases and, before the impulse phases, temperature control is reduced or completely discontinued. 14. Air conditioning system for a motor vehicle, preferably an urban bus, characterized in that it is configured to perform the method of operation, as defined in any one of claims 1 to 13. 15. Urban bus, characterized by the fact that it has an air conditioning system, as defined in claim 14.

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